Alpine PSS-20WRA Owners Manual - Page 20

UNLIMITED Jeep Wrangler ˜ 20/20 Troubleshooting Guide Symptom 1 System will not turn on 2 Volume is too loud with aftermarket headunit. 3 Subwoofer sounds very low. 4 One of the speakers has no sound. 5 Airbag light is on 6 System turns on only on radio source 7 No Sound and amplifier light is blinking Red 8 No Sound and amplifier light is solid Red Possible Cause Missing or blown fuse at the battery Radio's Remote Turn-On wire may be disconnected. Speaker level out is connected at the T-Harness. Amplifiers gain control has not been properly adjusted. Gain level may be down to the lowest setting. Audio Phase may be reversed. Disconnected pin or loose connection. Failed to disconnect the battery while working on the vehicle. Aftermarket Power Antenna wire is connected to amp Operating temperature is high. Amplifier circuits abnormal. An electrical short has occurred, or supply current is too high. Remedy Insert or replace fuse Verify that Remote Turn-On wire is connected. Ensure that the low level RCA adapters are used in aftermarket headunit system (refer to the corresponding wiring diagram). Refer to the corresponding system diagram. Adjust level to reccommended setting (refer to the corresponding wiring diagram). Ensure that the PHASE is set to 0˚. Check all connections to the speaker, loose pins, disconnected terminals etc.. Disconnect the battery and re-connect after 5 minutes. If problem is not solved, the vehicle will have to be taken to a Jeep dealer. Connect the Remote Turn-On wire (Blue/ White) to the Blue wire on the amplifier harness. Decrease the vehicle's interior temperature to a normal level. The indicator color changes to blue. Turn off the power and correct the short. Then turn on the unit and verify that the indicator color has changed to Blue.